[libFuzzer] Diff 17 - Implement DirName() for Windows.

[amccarth]

lib/Fuzzer/FuzzerIOWindows.cpp

144

Instead of managing memory yourself, I would just use another string as the non-const buffer. PathRemoveFileSpace may replace one of the characters with '\0', so all you have to do is resize the result.

std::string result = FileName;
PathRemoveFileSpecA(&result[0]);
result.resize(std::strlen(result.c_str());
return result;

[mpividori]

Abandon this revision because I reimplemented DirName in: https://reviews.llvm.org/D27579

lib/Fuzzer/FuzzerIOWindows.cpp

 #include <cstdarg>
 #include <cstdio>
 #include <fstream>
 #include <io.h>
 #include <iterator>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <windows.h>
+#include <Shlwapi.h>
 
 namespace fuzzer {
 
 static bool IsFile(const std::string &Path, const DWORD &FileAttributes) {
 
   if (FileAttributes & FILE_ATTRIBUTE_NORMAL)
     return true;
 
int DuplicateFile(int Fd) {
   return _dup(Fd);
 }
 
 void DeleteFile(const std::string &Path) {
   _unlink(Path.c_str());
 }
 
 std::string DirName(const std::string &FileName) {
-  assert(0 && "Unimplemented");
+  char *Tmp = new char[FileName.size() + 1];
+  memcpy(Tmp, FileName.c_str(), FileName.size() + 1);
+  PathRemoveFileSpecA(Tmp);
+  std::string Res(Tmp);
+  delete [] Tmp;
+  return Res;
 }
 
 }  // namespace fuzzer
 
 #endif // LIBFUZZER_WINDOWS